:root{--bg: #0b1220;--panel: #10192e;--accent: #5eead4;--accent-2: #93c5fd;--text: #e5e7eb;--muted: #9aa3b2;--danger: #ef4444;--warn: #f59e0b}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:radial-gradient(1200px 800px at 70% -10%,#13203b 0%,var(--bg) 60%);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial}.app{display:grid;grid-template-columns:300px 1fr 360px;grid-template-rows:56px 1fr;grid-template-areas:"topbar topbar topbar" "sidebar canvas analyzer";height:100%}.topbar{grid-area:topbar;display:flex;align-items:center;gap:12px;padding:8px 14px;border-bottom:1px solid #1f2a44;background:linear-gradient(180deg,#0f1a2f,#0c1527)}.brand{font-weight:700;letter-spacing:.5px}.badge{padding:4px 8px;border:1px solid #2a3a61;border-radius:999px;color:var(--muted)}.sidebar,.analyzer{background:var(--panel);border-right:1px solid #1f2a44}.sidebar{grid-area:sidebar;overflow:auto;padding:12px}.canvas{grid-area:canvas;position:relative}.analyzer{grid-area:analyzer;padding:12px;border-left:1px solid #1f2a44}.section-title{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.14em;margin:10px 0}.toolbtn{display:inline-flex;align-items:center;justify-content:center;background:#0f1a2f;border:1px solid #1f2a44;border-radius:10px;padding:8px 10px;margin:4px 4px 0 0;cursor:pointer;color:#c7d2fe}.toolbtn.active{outline:2px solid var(--accent);color:#0f172a;background:#14b8a6;border-color:transparent}.row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.small{font-size:12px;color:var(--muted)}.card{background:#0f1a2f;border:1px solid #1f2a44;border-radius:12px;padding:12px;margin-bottom:10px}label{font-size:12px;color:var(--muted);display:block;margin-bottom:6px}select,input[type=range]{width:100%;background:#0c1527;border:1px solid #223258;color:var(--text);padding:8px;border-radius:8px}.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas;font-size:12px;padding:2px 6px;border:1px solid #334155;border-bottom-width:2px;border-radius:6px;background:#0b1220}.hr{height:1px;background:#1f2a44;margin:8px 0}.warn{color:var(--warn)}.danger{color:var(--danger)}.canvas-toolbar{position:absolute;top:10px;left:10px;display:flex;gap:8px;background:#0f1a2fbf;border:1px solid #1f2a44;border-radius:10px;padding:6px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}canvas{display:block;width:100%;height:100%;background:radial-gradient(900px 600px at 40% -20%,#14203a,#0b1220 60%)}.footer-hint{font-size:12px;color:var(--muted);text-align:center;padding:8px}a{color:var(--accent-2);text-decoration:none}